Movie from 70’s or 80’s: teenager goes (somehow) back to Egyptian times, meets Egyptian girl/princess, falls is love, has to go back to present time (somehow), is sad, but his new neighbour/girl next door looks identical to Egyptian girl.
Chisco Answered question
It’s similar to “The Erotic and Wacky Tunnel of Time” (1983).
https://www.imdb.com/title/tt0085504/