How to rotate a clip in iPhoto?

Hello, I am newbie here and already have a question to ask.

I shot some short video clips with my cellphone and transferred them into my iMac, to iPhoto by default.

I obviously held my phone in a wrong way so many clips are rotated left 90 degrees. I need to rotate them back to the right. I found solution in the iMovie and clips are now neatly corrected and viewable in the iMovie Event Library.

But, back in iPhoto the same clips are still turned left. When I double click to open them, it goes to Quicktime and shows a clip turned to left! How can I repair this problem? I need to have my clips corrected in iPhoto because from here only I can transfer to my iPad...! Thanks in advance for any suggestion.

You can't rotate movies in iPhoto. Export your movie from iMovie and put it in iTunes. You can then sync it to your iPad.

Thanks for your tip!