You're kidding me. Clark Kent's your cousin? You're putting me on.
6 seconds sound clip from the Supergirl (1984) movie soundboard.
You can hear this line at 00:34:30 in the Blu-ray version of the movie.
Quote context
[...]
- Lois.
- Anyway, show our new Miss Lee around, Miss Lane.
- Oh, by the way, she's an orphan, but don't let her play on your sympathies, hmm?
- You're kidding me. Clark Kent's your cousin? You're putting me on.
- Do I know him? Does my sister know him? Now, that's the big question.
- Oh, I see. I guess, if they worked at the same newspaper, they must know each other.
- Well...
- Well, this is your bed, but we don't sleep around here. Nonstop excitement in this dorm.
[...]