I've a Sony Xperia M2 phone.

[AC Question]

How do I transfer downloaded movies bought from google play store to SD card? I bought a 32 GB memory card for this purpose. Also, why are the Whatsapp photos sent to me not automatically saved in the SD card but the ones that I take are? All this is taking up my internal phone storage. Every one week or so, I get a message on my Sony Xperia M2 phone saying internal storage is 75% full. Tap to transfer.... When I transfer the Whatsapp photos that are sent to me, the details of the photos are changed eg the date will be changed to date of transfer. Please help. Thank you kindly.