DIFFT accept submissions from all genre categories and every country.

All foreign language films entered must have accompanying English subtitles.

All film entries submitted should have been completed in 2017 or later and meet the appropriate selection criteria.

Categories:

Feature - 
Incorporating all genres 
Minimum runtime 80 minutes (excluding credits)

Short - 
Incorporating all genres 
Maximum runtime 30 minutes (excluding credits) 

Documentary -
Minimum runtime 40 minutes (excluding credits)

U-Trail Trailers - 
Minimum runtime 30 seconds 
Maximum runtime 5 minutes 
Must include original content 
Must be suitable for 12 years + 
Must be capable of being adapted into a screenplay treatment

NB: all shortlisted U-TRAIL entries will be shown across independent TV station Channel 7 in the lead up to the festival, all finalists will be screened at DIFFT 2019. 

This is just an excerpt of the regulations, carefully read the complete regulations before submitting.