no, minidna is a DLNA.UPnP server, not client. It presents its files to dlna clients.
to get your TV to play films via DLNA, you'll need 2 things
1- a dlna server. those* allways* make the files available to the dlna clients, and *sometimes* offer transcoding services, ie transparently re-encode files into formats the clients support, on-the-fly, as required. Minidlna does NOT do transcoding though, and my guess is that getting the Pi to do that sufficiently quickly (remember, on-the-fly) involves the GPU, so it will be tricky at best, impossible at worst. If your files are on a PC, or accessible from a PC, you could run un dlna server on it. For Windows, TVersity is the most common, and does transcoding. The newest PC version of XBMC also include a dlna server, I think, and it runs on Linux too. Windows Media Player also is a (sucky) dlna server and client.
2- a dlna client, that gets lists of files from the sever and plays them. Pretty much all media players are dlna clients these days.
The Pi can be a non-transcoding dlna server, and/or a dlna client. I'm not sure yet which files formats/bitrates the Pi can play competently though. H.264 will be done on the GPU so that will work, other codecs, I don' know.