[1] He made his debut with the Kamal Haasan starrer Ashtamangalyam in 1977.

[2] His brothers P. Chandrakumar and P. Sukumar are also Malayalam film directors.

[3][4][5] Gopikumar's major films were Harshabashpam, Manoradham, Pichipoo, Ival Oru Naadody and Thaliritta Kinakkal starring Bollywood actors Tanuja and Madhu Malini, that also had a sound track of Mohammed Rafi.

[6] His 1981 film Kaattupothu starring Madhu and Shankar that had chartbusters, failed to get a theatrical release.

Gopikumar's tried to make a comeback with Saudhamini (2003), a film he directed after 22 years, starring Jagadish, Krishna and Captain Raju failed at the box office.