Final Cut Pro X won't recognize 120 FPS

Lighting was bright as with the other clips that got recognized properly. Project is 30 FPS. When I conform the other to clips FCPX slows them down correctly to 25 %. They look great. No dropped or repeated frames. Just as viewed in Quicktime. This one file though does'n change speed when using conform speed. When I slow it down manually it looks as great as the other two clips. Until FCPX renders. Is there any way to prevent FCPX from false-rendering my clip?

Thanks for your help!!

OK, thanks again for you help. I understand it's not suited for anything serious. I just don't get why I cannot use it "as is". Why can't FCPX just play the file @ 30 FPS as Quicktime seems to do. I don't care if it's 25 or 26,3% of normal speed... Does iMovie do it?

It does look like slow motion in Quicktime. Worse for FCPX, iMovie 10.01 handles the file perfectly, playing it as slow and smooth as quicktime. I can export it in mpg4 at 29,97 FPS. And then re-import it in FCPX where it's now shown in slow motion. So it comes really down to FCPX not knowing how to treat that file. Every other Apple-App does. I need a free app to tell the pro app how to do things...:-( Hopefully Apple will resolve that problem. I like to play around the iPhone camera even though it arguably isn't fit for more serious tasks. What do you think?

I should buy a GoPro! But it's not always with me! ;-) 29.97 was the result when I importet the clip into iMovie, put it on the timeline (where it showed a turtle for being a slow motion clip) and exported it as MPEG4 without any changes. Didn't use iMovie once. So this was all standard settings. Mysterious ways. At least I have a workaround...

I found another clip with a framerate just below 120. FCPX didn't accept it either. Everything above is ok. Wheter it's exactly 120 or 123,4 doesn't matter. So the problem is not the uncommon (or maybe even variable) framerate. It's that it doesn't reach 120. I wonder why iMovie can do it.

It's iMovie 10. Well it sill looks a lot better than what I see and get from FCP... I don't see a better workaround right know. Sent you an email with access to the original clip.

It's not helping. In fact, optimizing media "kills" most of the frames and reduces the clip to 30 FPS. That's because FCP thinks it's a 30 FPS-Clip anyway. I still see no way to convince FCP of the truth here. If you could enter the exact speed percentage you could calculate your way out of the problem. To slow 114,94 FPS down to 30 you must tell FCP to play the clip at 26.1 % speed. But you can't enter exact numbers. But the closer you get there the fewer dropped or doubled frames.. But still. iMovie-workaround seems easier. Doesn't have to be MPEG4 as a result... Just a real 30 FPS clip...