What is this movie called?

I saw a trailer on youtube for a upcoming movie but unfortunately I forgot the name!
There are two boys running through the forest, being chased by a security man or a detective. Then suddenly the man falls into a hole. The two boys decide to leave the man alone. But the younger one of the two feels bad for the man and looks after him while the older brother is ready to let him die in the hole.
Does anyone know the title?