Earth Girls Are Easy

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• Two of the cars from Death Race 2000 (1975) appear in this film. Calamity Jane's car is visible at the gas station, and Frankenstein's car may be seen on the road while Carry and Wayons' characters are driving backwards.
• Movie Goof (revealing mistake): As Mac is kissing Valerie and the space-ship lifts off, you can briefly see through Macs head.
• This movie was the final appearance of Robby the Robot in film for quite some time: 15 years later, the costume returned in Looney Tunes: Back in Action. Robby was absent from just about everywhere else, too, making only a brief appearance in the early 1990's on Totally Hidden Video before virtually disappearing until 2003.
• Movie Goof (revealing mistake): When we first see Mac sleeping suspended in the stasis chamber at start of the film, the two wires that keep him "levitated" are visible.