Before iMovies was upgraded to version 11 from version 10, users could import projects from the mobile version of iMovie (.imoviemobile) to the OS X version and produce .imovieproject file. This doesn't seem to work anymore and there are no news whenever this functionality comes back in future versions.
Convert iMovie project package to iMovie project.
We have found one software suitable in our database for this conversion.
Apple macOS / Mac OS X software - convert imoviemobile to imovieproject on OS X
iMovie is proprietary video editor for Mac OS X and iOS operating system. It is able to open and edit various video file formats. Mac OS X version is distributed as a part of iLife suite and iOS version is available on iTunes App Store.
Convert from imoviemobile file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.