Finished TDD exercise up to: Show a movie.
Specs can not be executed from shell, only from within vim.
Executing rspec from shell shows:

***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in
`load': cannot load such file --
***/RailsStuff/PragStudio/flix_tdd/spec/models/spec (LoadError)
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in
`block in load_spec_files'
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in
`each'
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in
`load_spec_files'
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:in
`run'
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:80:in
`run'
from
***/.rvm/gems/ruby-2.0.0-p353/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:in
`block in autorun'