Walmart's Vudu streaming service (up until now a US-only offering) is planning a huge international expansion, claims Variety. The move would see Vudu move into Mexico sometime in June, followed by 30 countries throughout Latin America, and on into Europe and Asia sometime within the year. While competitor Netflix is rolling out its own international expansion (having launched in 45 countries last year, including the UK and Ireland), there are a few things that could possibly give Vudu an edge. Notably Walmart's retail presence in over 5,600 stores in 26 countries outside the US (including such chains as Bodega Aurrera and Todo Dia) would let it cross promote the service as it does its new Disc-to-Digital offering, and the expected availability of Vudu's prepaid cards would drop a barrier to signing up in countries where credit cards aren't so widespread. Of course, Netflix and Vudu aren't exactly direct competitors — one's a flat-rate video-on-demand service, the other does video rentals and purchases — but there are only so many viewers in the world, and it looks like both companies are trying to stake their claims.