Trivia: In the scene with George swinging from the Bay Bridge in San Francisco, that's actually Brendan Fraser, not a stuntman. He enjoyed the rush so much that he requested an extra take just to swing again.
Trivia: Brendan Fraser auditioned for the role, but wasn't going to get it. However, he'd brought his dog along to the audition and it was behind the sofa. When it started barking at the end of the audition, Brendan leaped over the sofa and started barking back at it on his hands and knees. They offered him the part immediately.
Trivia: The tree house and the immediate area around it were all created on a big set for the movie.
Answer: There's certainly no listing for him on the IMDb, which is generally good with uncredited appearances. Farrell was still working in the UK and Ireland at the time of the film, which was entirely US shot, and didn't become involved in Hollywood productions until about the year 2000, three years after GOTJ came out, which would seem to make it extremely unlikely that he appeared in it.
Tailkinker ★