From Chérie's research, we found that making a full 3d animation would get too complicated and take more time than we have. So we have decided to maybe use some film footage, and build the charcters onto that. this will save alot of time.
To get an idea of what this would look like some research was done for CGI films such as Stuart Little. This was done to give us an idea on how professional industry immigrate their animation together with real live actions.
Here's a short interview for Stuart Little production team:
Stuart Little Production Story