For the film:
- Duelling Works: There were two other movies that came out in 1988 that involved relatives switching bodies: Like Father Like Son (1987) starring Dudley Moore and Kirk Cameron, featured the exact same premise as this film, while 18 Again! (1988) featured a grandfather, played by George Burns, taking over the body of his grandson. Meanwhile Big just had Tom Hanks as a 13-year-old boy in an adult's body, but got far more acclaim and success than the other three.
