Ivan Guerrero, the videographer behind the 1950s version of The Empire Strikes Back, has created an old-timey preview of Joss Whedon's upcoming Avengers film by splicing together 50+ clips from old scifi movies. Plus, the movie's based on Secret Invasion!

Also, here's the Easter egg-filled annotations reel. It's definitely worth a watch — look out for cameos from Truman-era Dr. Strange, Peter Parker, and Uatu the Watcher.

Finally, here are all the movies Guerrero lifted the footage from. We give him serious plaudits for sifting through some of these Z-quality flicks.

Man and the Moon, Flash Gordon (Deadline at Noon), The Phantom Planet, Rocketship X-M, Star Trek (The Cage), Buck Rogers in the 25th Century, The Flying Saucer, Earth vs. the Flying Saucers, The 27th Day, Superboy, The Wasp Woman, Outer Limits (Demon with the Glass Hand, The Monsters are Due on Maple Street, The Invisibles, Chameleon, Zzzzzz), Anastasia, Underworld USA, The Amazing Colossal Man, War of the Worlds, The Avengers, Captain America, It Came From Outer Space, Invasion USA, King of the Rocketmen, Zombies of the Stratosphere, Radar Men from the Moon, Die Nibelungen (Siegfried, Kriemhild's Revenge), The Man with Nine Lives, The Thing from Another World, Dr. Cyclops, The Marvel Superheroes (Hulk), Der grüne Bogenschütze, William Tell, Batman (Shoot a Crooked Arrow), The Eagle, The War of the Colossal Beast, The Gnome Mobile, Thunderball, The Dirty Dozen, Captain Scarlet, Fantastic Four (The Phantom of Film City), Our Man Higgins, Attack of the Puppet People, Land of the Giants (The Clones), Yilmayan Seytan, Tales of Frankenstein, Love Finds Andy Hardy, Das Rheingold, Fireball XL5, Stingray, Airport, Demetrius and the Gladiators

[Ivan Guerrero's Youtube via And I Am Not Lying. Thanks for the tip, David!]