And another thing. Kirk is 20 years old when the Enterprise encounters the Talosians in The Cage and Menagarie I & II (Deadly Years-age 34 & Menagarie-13yrs before TOS). Is he less than 20 during this movie?
Only in the Corvette scene, where he looks to be about twelve or thirteen. The bulk of the story in this movie appears to take place when Kirk is in his mid-to-late twenties.