“This film is remarkable in several respects. In the first place, it is full life-size. Secondly, it is the only accurate recent portrait of the great inventor. The scene is an actual one, showing Mr. Edison in working dress engaged in an interesting chemical experiment in his great Laboratory. There is sufficient movement to lead the spectator through the several processes of mixing, pouring, testing, etc. as if he were side by side with the principal. The lights and shadows are vivid, and the apparatus and other accessories complete a startling picture that will appeal to every beholder.” (Edison Catalog)

An inventor dreams that his newly designed airship takes flight.

In the future (1921), an alliance of several foreign countries plot to attack the US. American officials, coming to the realisation that the country is basically defenceless, offer $1,000,000 to anyone who can come up with a weapon to defeat the invaders. Winthrop Clavering, a writer and inventor, hears of the reward and tells his friend Bartholomew Thompson, a scientist and inventor who has been working on developing flying torpedo. However, enemy agents have also heard about Thompson's project, and set out to kill him and steal his plans. This film is now considered lost.

Eccentric inventor Charlie Jackson tries to interest wealthy investors in his girlfriend's plan to help children from poor neighbourhoods.

Comedy which concerns the struggles of an ambitious department store sales clerk who is caught up in New York high society.

Miss Devore plays Tommy, a young woman who runs a boarding house for her father, an inventor of eccentric devices, and the boarders are the usual collection of neurotics in such an effort.

Eva lives in the sinister Tower with her father, a mad inventor, and her grandfather. The aviator Wilfred Durian and his lovely wife live nearby in the town. But Durian's famous flight across the Australian desert was not all it seems... and when his 'dead' partner Arved Holl is rescued by Eva and comes to claim his former fiancée's hand, the whole house of cards is about to come tumbling down. Meanwhile, Eva's own family history is not quite as she had always believed...

An inventor invents a television telephone while going through some love troubles.

When Charley asks a young woman whom he is in love with to marry him, she tells him that he needs to get her father's consent. But when Charley then goes to see her father, who owns a restaurant, he ends up getting hired as a dishwasher instead. The rest of the kitchen staff soon find out that Charley is not a member of their union, and they go on strike. Charley is left by himself, leading to a series of upheavals in the restaurant, and a great invention.

In a futuristic city sharply divided between the rich and the poor, the son of the city's mastermind meets a prophet who predicts the coming of a savior to mediate their differences.

Charles Bowers is once again an eccentric inventor. This time, he has only a matter of hours to debut his extraordinary new invention in order to collect a huge bequest from his deceased father. Along the way, his evil uncle tries to sabotage the machine, so the inheritance will go to him.

On a volcanic island near the Kingdom of Hetvia rules Count Dakkar, a benevolent leader and scientist who has eliminated class distinction among the island's inhabitants. Dakkar, his sister Sonia and her fiance, engineer Nicolai Roget have designed a submarine which Roget pilots on its initial voyage just before the island is overrun by Baron Falon, despotic ruler of Hetvia. Falon sets out after Roget in a second submarine and the two craft, diving to the ocean's floor, discover a strange land populated by dragons, giant squid and an eerie undiscovered humanoid race.

Gar Evans is a con artist, who pretends to be the owner of a "Golden Gate Artificial Rubber Company", and he is looking for investors. Finding them is relatively easy, but it becomes difficult when those want to see the inventor of the synthetic rubber...

Joe Grant is an inventor, fireman and baseball player in his small hometown. He gets an offer to play in a big team and hopes to get more money for his inventions. But Joe's invited to present his invention to a fire extinguisher company at the same time when he is supposed to play. Will he be able to show the effectiveness of his invention and win the game?

A poor New York plumber's wife and children hope to move "uptown" from their lower East Side neighborhood after he sells his new invention.

Two men bear the name Joe Holt. One is a shipping clerk, the other a champion Canadian swimmer. When a socialite gets them confused, thinking the clerk is the inventor of an unsinkable swim suit, she enters him in a 20 mile swim race.

Helga Breder is a young, spoiled girl. To her beloved Jörgen she says that she, as a modern young woman, is multi-talented and can do whatever she likes. Jörgen bets that she can't work as a house-maid but, if she manages it, he will buy her a diamond ring. Helga becomes a house-maid at Vinger Mansion and falls in love with an inventor, Bertil Frigård, who lives there.

Fatty invents a liquid with flubber-like properties which makes objects resilient and unbreakable. Unfortunately, in his rush to get out of the house to demonstrate his invention, he unknowingly grabs a jar of moonshine instead of the jar which holds his wonder liquid. To make matters worse, as he drives to the demonstration, a football-sized beehive falls from a tree onto the cargo bed of his truck . . .

Foreign investors converge on a luxury hotel in China to bid on a new kind of radioscope. But, this is a hotel where Burns and Allen are the in-house medical staff, a measles risk sends the whole building into quarantine, and a madcap millionaire crashes dinner in his autogyro. Hotel and radioscope become a stage for an all-star cast of comedians and musicians, from vaudeville to the new generation.