I'll go after them. After the Mad Hatter.
5 seconds sound clip from Batman (1966) - Batman Stands Pat (S1E14) TV Series.
You can hear this line at 00:03:47 in the Blu-ray version of the movie.
Quote context
[...]
(In french) Yes, look. He's alive!.... I hope.
- Curses. My super mesmerizer is on the brink.
- I'll go after them. After the Mad Hatter.
- Robin!
- Batman!
- Robin!
- Well, I'm used to seeing you do the impossible. But getting out of that plaster tomb was impossible.
[...]

 Dead of Night (1945)
 Dead of Night (1945)  Phantom of the Opera (1943)
 Phantom of the Opera (1943)  Scooby-Doo, Where Are You! (1969)
 Scooby-Doo, Where Are You! (1969)  Halloween III: Season of the Witch (1982)
 Halloween III: Season of the Witch (1982)  Knight Rider (1982)
 Knight Rider (1982)