First & Last, The Window Opens

the first image (prior to the opening credits)

the first image (post opening credits)

 the last image (pre closing credits)

first and last bits of regular dialogue if you need another clue

first ~ "And now the window opens, it gently gently opens.
"last ~ "See you later."

Can you guess the movie?

The colorful film is [Highlight for the answer] ON A CLEAR DAY YOU CAN SEE FOREVER (1970) starring Barbra Streisand. And yes she's singing in the sky in that final shot.

more first and last puzzles here.

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