Slow motion / speeding up with Quicktime Pro

Usually if you want to slow mo or speed up a clip you need a full editor eg Final Cut. Thats expensive for an occasional requirement.

There is a way to do this usng only Quicktime Pro.

Say your movie lasts 30 seconds, but you want to stretch it to 1 minute.

1 - create a new empty movie from file>new player

2 - in your source, select all and the select copy

3 - swith to the new player and paste, and then paste again

this gives you a 1 minute movie, but everything doubled.

4 - in the new player do apple-j, click on the video track, and press delete

5 - switch back to the source and copy again

6 - switch back to the new player and this time from the edit menu select "add to selection & scale"

This causes your pasted movie to be stretch (scaled) to the length of the new player, which we made double.