I also have this issue, imovie 11 9.0.9 crashes when trying to insert text to clips. Started after El Capitan.
I'll start a different thread but thumbnails in both imovie and aperture are upside down...
Process: iMovie [699]
Path: /Applications/iMovie.app/Contents/MacOS/iMovie
Identifier: com.apple.iMovieApp
Version: 9.0.9 (1795)
Build Info: iMovieApp-1795000000000000~1
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: iMovie [699]
User ID: 501
Date/Time: 2015-11-10 00:22:22.697 -0800
OS Version: Mac OS X 10.11.1 (15B42)
Report Version: 11
Anonymous UUID: F2AE56E4-E4CB-7B6E-F3FA-697C5270605B
Time Awake Since Boot: 6000 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000004
Exception Note: EXC_CORPSE_NOTIFY
VM Regions Near 0x4:
-->
__TEXT 000000000005e000-00000000004e6000 [ 4640K] r-x/rwx SM=COW /Applications/iMovie.app/Contents/MacOS/iMovie
There is a lot more to the error message
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 2
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 3077
thread_create: 0
thread_set_state: 0
VM Region Summary:
ReadOnly portion of Libraries: Total=282.1M resident=0K(0%) swapped_out_or_unallocated=282.1M(100%)
Writable regions: Total=353.4M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=353.4M(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
ATS (font support) 32.1M 9
Accelerate.framework 128K 2
Activity Tracing 2048K 2
CG backing stores 6604K 5
CG image 3880K 131
CG image (reserved) 4K 2 reserved VM address space (unallocated)
CG shared images 272K 9
CoreAnimation 108K 15
CoreData 4K 2
CoreImage 600K 23
CoreUI image data 304K 13
CoreUI image file 320K 5
Foundation 20K 3
IOKit 7940K 2
Image IO 7948K 85
JS JIT generated code 32K 3
Kernel Alloc Once 4K 2
MALLOC 250.4M 208
MALLOC guard page 48K 9
MALLOC_LARGE (reserved) 2252K 4 reserved VM address space (unallocated)
Memory Tag 242 12K 2
Memory Tag 249 156K 2
OpenCL 8K 2
OpenGL GLSL 128K 3
Process Corpse Info 2048K 2
SQLite page cache 128K 2
Stack 19.7M 26
Stack Guard 56.1M 26
VM_ALLOCATE 11.1M 165
WebKit Malloc 4392K 23
__DATA 16.9M 325
__GLSLBUILTINS 2588K 2
__IMAGE 528K 2
__IMPORT 20K 6
__LINKEDIT 55.3M 66
__OBJC 5392K 123
__TEXT 226.8M 325
__UNICODE 552K 2
mapped file 126.2M 180
shared memory 16.4M 11
=========== ======= =======
TOTAL 858.4M 1789
TOTAL, minus reserved VM space 856.1M 1789