unreal egine used in marketing and comercials

Having read through the EULA and searching the forms I was wondering if commercials classified as “film”. As a free lancing 3d artist I was considering using Unreal engine 4 to render a commercial for a client. Also would I be able to use the free assets from the market place in the commercial (IE. grass, trees, etc.).

I understand that this might not be in the right section but I need to be sure so I do not get my client caught up in a licensing deal he cannot afford. Thanks for the clarification.

These are the links I have been using:
Using market place itemsUnreal engines FAQ
Unreal Engines uses